:root{
  --bg:#f6f6f6;
  --text:#111;
  --muted:#6b6b6b;
  --line:#e6e6e6;
  --red:#a40000;
  --shadow: 0 10px 30px rgba(0,0,0,.08);
}

*{box-sizing:border-box}
body{
  margin:0;
  font-family: Arial, Helvetica, sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.5;
}

a{color:inherit}
.container{width:min(1200px, 92%); margin:0 auto}

/* Header */
.rdci-header{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(120%) blur(8px);
  border-bottom:1px solid var(--line);
}
.rdci-header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:12px 0;
}
.rdci-brand{display:flex; align-items:center; gap:10px; text-decoration:none}
.rdci-brand__mark{
  width:10px; height:20px; background:var(--red);
  display:inline-block;
}
.rdci-brand__text{
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  font-size:12px;
}

/* Nav */
.rdci-nav__toggle{
  display:none;
  border:1px solid var(--line);
  background:#fff;
  padding:8px 10px;
  border-radius:10px;
  cursor:pointer;
}
.rdci-nav__list{
  list-style:none;
  display:flex;
  gap:18px;
  margin:0;
  padding:0;
  font-size:12px;
  letter-spacing:.06em;
  text-transform:uppercase;
}
.rdci-nav__list a{
  text-decoration:none;
  padding:8px 0;
  display:inline-block;
}
.rdci-nav__list a:hover{color:var(--red)}

/* Dropdowns (WP adds .sub-menu) */
.rdci-nav__list .sub-menu{
  position:absolute;
  display:none;
  list-style:none;
  margin:0;
  padding:10px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:var(--shadow);
  min-width:220px;
}
.rdci-nav__list li{position:relative}
.rdci-nav__list li:hover > .sub-menu{display:block}
.rdci-nav__list .sub-menu a{padding:6px 8px; width:100%}
.rdci-nav__list .sub-menu li{position:relative}

/* Hero */
.rdci-hero{
  position:relative;
  min-height:420px;
  background:#1b1b1b;
  background-size:cover;
  background-position:center;
  color:#fff;
  display:flex;
  align-items:flex-end;
}
.rdci-hero--small{min-height:260px}
.rdci-hero__overlay{
  position:absolute; inset:0;
  background:linear-gradient(90deg, rgba(0,0,0,.55), rgba(0,0,0,.25) 60%, rgba(0,0,0,.15));
}
.rdci-hero__inner{
  position:relative;
  padding:80px 0 44px;
}
.rdci-hero__kicker{
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  opacity:.9;
  margin-bottom:10px;
}
.rdci-hero__title{
  margin:0;
  font-size:48px;
  letter-spacing:.04em;
  text-transform:uppercase;
  line-height:1.05;
}
.rdci-hero__subtitle{
  margin-top:10px;
  font-size:16px;
  color:rgba(255,255,255,.85);
}

/* Main layout */
.rdci-main{padding:28px 0 56px}
.rdci-main__grid{
  display:grid;
  grid-template-columns: 340px 1fr;
  gap:22px;
  align-items:start;
}
.rdci-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow);
  padding:18px 18px;
}
.rdci-card__title{
  font-weight:800;
  letter-spacing:.08em;
  text-transform:uppercase;
  font-size:12px;
  margin-bottom:10px;
}

/* TOC */
.rdci-toc{
  list-style:none;
  padding-left:0;
  margin:0;
}
.rdci-toc li{padding:5px 0}
.rdci-toc a{
  text-decoration:none;
}
.rdci-toc a:hover{color:var(--red); text-decoration:underline}
.rdci-toc ul{
  list-style:none;
  padding-left:14px;
  margin:6px 0 0;
  border-left:2px solid var(--line);
}
.rdci-toc ul li{padding:4px 0}

/* Content */
.rdci-content{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow);
  padding:26px 26px;
}
.rdci-content h1,.rdci-content h2,.rdci-content h3{line-height:1.2}
.rdci-content h2{
  margin-top:0;
  letter-spacing:.03em;
  text-transform:uppercase;
}
.rdci-content img{max-width:100%; height:auto}

/* Footer */
.rdci-footer{
  background:#0f0f0f;
  color:#fff;
  padding:22px 0;
}
.rdci-footer__inner{
  display:flex;
  justify-content:space-between;
  gap:18px;
  align-items:center;
}
.rdci-footer__list{
  list-style:none;
  display:flex;
  gap:12px;
  margin:0;
  padding:0;
  font-size:12px;
}
.rdci-footer__list a{color:#fff; text-decoration:none; opacity:.9}
.rdci-footer__list a:hover{opacity:1; text-decoration:underline}
.rdci-footer__copy{font-size:12px; opacity:.85}

/* Responsive */
@media (max-width: 980px){
  .rdci-main__grid{grid-template-columns:1fr}
  .rdci-hero__title{font-size:36px}
}
@media (max-width: 860px){
  .rdci-nav__toggle{display:inline-block}
  .rdci-nav{display:none}
  .rdci-nav.is-open{display:block}
  .rdci-nav__list{flex-direction:column; gap:0; padding:12px 0}
  .rdci-nav__list a{padding:10px 0}
  .rdci-nav__list .sub-menu{position:static; display:block; border:0; box-shadow:none; padding:0 0 0 12px}
}